Efficiency improvement of solution processed blue phosphorescent devices using high triplet energy electron transport layer

Kyoung Soo Yook; Sang Eok Jang; Jun Yeob Lee

doi:10.1149/1.3465313

Efficiency improvement of solution processed blue phosphorescent devices using high triplet energy electron transport layer

Kyoung Soo Yook
, Sang Eok Jang
, Jun Yeob Lee

Dankook University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

High efficiency solution processed blue phosphorescent organic light emitting diodes (PHOLEDs) were developed using a high triplet energy exciton blocking layer. A spirobifluorene-based phosphine oxide compound was used as the exciton blocking layer for poly(N -vinylcarbazole) (PVK):iridium(III) bis[4,6-(difluorophenyl)-pyridinato- N, C′] picolinate (FIrpic) emitting layer. A high quantum efficiency of 12.6% and a high current efficiency of 22.9 cd/A were obtained from the PVK:FIrpic PHOLED due to efficient exciton blocking and electron injection.

Original language	English
Pages (from-to)	J122-J124
Journal	Electrochemical and Solid-State Letters
Volume	13
Issue number	10
DOIs	https://doi.org/10.1149/1.3465313
State	Published - 2010
Externally published	Yes

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title = "Efficiency improvement of solution processed blue phosphorescent devices using high triplet energy electron transport layer",

abstract = "High efficiency solution processed blue phosphorescent organic light emitting diodes (PHOLEDs) were developed using a high triplet energy exciton blocking layer. A spirobifluorene-based phosphine oxide compound was used as the exciton blocking layer for poly(N -vinylcarbazole) (PVK):iridium(III) bis[4,6-(difluorophenyl)-pyridinato- N, C′] picolinate (FIrpic) emitting layer. A high quantum efficiency of 12.6\% and a high current efficiency of 22.9 cd/A were obtained from the PVK:FIrpic PHOLED due to efficient exciton blocking and electron injection.",

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year = "2010",

doi = "10.1149/1.3465313",

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pages = "J122--J124",

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T1 - Efficiency improvement of solution processed blue phosphorescent devices using high triplet energy electron transport layer

AU - Yook, Kyoung Soo

AU - Jang, Sang Eok

AU - Lee, Jun Yeob

PY - 2010

Y1 - 2010

N2 - High efficiency solution processed blue phosphorescent organic light emitting diodes (PHOLEDs) were developed using a high triplet energy exciton blocking layer. A spirobifluorene-based phosphine oxide compound was used as the exciton blocking layer for poly(N -vinylcarbazole) (PVK):iridium(III) bis[4,6-(difluorophenyl)-pyridinato- N, C′] picolinate (FIrpic) emitting layer. A high quantum efficiency of 12.6% and a high current efficiency of 22.9 cd/A were obtained from the PVK:FIrpic PHOLED due to efficient exciton blocking and electron injection.

AB - High efficiency solution processed blue phosphorescent organic light emitting diodes (PHOLEDs) were developed using a high triplet energy exciton blocking layer. A spirobifluorene-based phosphine oxide compound was used as the exciton blocking layer for poly(N -vinylcarbazole) (PVK):iridium(III) bis[4,6-(difluorophenyl)-pyridinato- N, C′] picolinate (FIrpic) emitting layer. A high quantum efficiency of 12.6% and a high current efficiency of 22.9 cd/A were obtained from the PVK:FIrpic PHOLED due to efficient exciton blocking and electron injection.

UR - https://www.scopus.com/pages/publications/77955753051

U2 - 10.1149/1.3465313

DO - 10.1149/1.3465313

M3 - Article

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VL - 13

SP - J122-J124

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 10

ER -

Efficiency improvement of solution processed blue phosphorescent devices using high triplet energy electron transport layer

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